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Finding the Fourth Proportional to 413,930.40, 620,895.60 and 374,564.40

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Solution

The fourth proportional to 413,930.40, 620,895.60 and 374,564.40 is: 561,846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,930.40 : 620,895.60 = 374,564.40 : x
  2. Step 2: Convert to fraction form
    413,930.40/620,895.60 = 374,564.40/x
  3. Step 3: Cross multiply
    413,930.40x = 620,895.60 × 374,564.40
  4. Step 4: Simplify right side
    413,930.40x = 232,565,387,876.64
  5. Step 5: Solve for x
    x = 232,565,387,876.64/413,930.40
  6. Step 6: Final answer
    x = 561,846.60

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